 
  Japan's Largest Sauna Stamp Rally "Hojosai" to Be Held in Niigata This Fall - Enjoy New Sauna Discoveries While Experiencing Autumn in Niigata
The Sauna Stamp Rally "Hojosai" will be held in Niigata Prefecture from October 25 to December 7, 2025, featuring 29 diverse sauna facilities including new venues, special aufguss events, and prize giveaways for participants collecting stamps across the region
 
   
    
   
  